Opened at the Selwyn Theatre on December 28, 1927. Ran 345 performances, to about October 1928. The Royal Family is a play written by George S. Kaufman and Edna Ferber. Its premiere on Broadway was at the Selwyn Theatre on 28 December 1927, where it ran for 345 performances to close in October 1928. It was included in Burns Mantle's The Best Plays of 1927–1928. Wiki link